Epigenomic signatures of sarcomatoid differentiation to guide the treatment of renal cell carcinoma

Talal El Zarif, Karl Semaan, Marc Eid, Ji Heui Seo, Simon Garinet, Matthew P. Davidsohn, Pranshu Sahgal, Brad Fortunato, John Canniff, Amin H. Nassar, Sarah Abou Alaiwi, Ziad Bakouny, Gitanjali Lakshminarayanan, Hunter Savignano, Kevin Lyons, Sayed Matar, Atef Ali, Eddy Saad, Renee Maria Saliby, Paulo CordeiroZiwei Zhang, Nourhan El Ahmar, Yasmin Nabil Laimon, Chris Labaki, Valisha Shah, Dory Freeman, Jillian O'Toole, Gwo Shu Mary Lee, Justin Hwang, Mark Pomerantz, Sabina Signoretti, Eliezer M. Van Allen, Wanling Xie, Jacob E. Berchuck, Srinivas R. Viswanathan, David A. Braun, Toni K. Choueiri, Matthew L. Freedman, Sylvan C. Baca

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Renal cell carcinoma with sarcomatoid differentiation (sRCC) is associated with poor survival and a heightened response to immune checkpoint inhibitors (ICIs). Two major barriers to improving outcomes for sRCC are the limited understanding of its gene regulatory programs and the low diagnostic yield of tumor biopsies due to spatial heterogeneity. Herein, we characterized the epigenomic landscape of sRCC by profiling 107 epigenomic libraries from tissue and plasma samples from 50 patients with RCC and healthy volunteers. By profiling histone modifications and DNA methylation, we identified highly recurrent epigenomic reprogramming enriched in sRCC. Furthermore, CRISPRa experiments implicated the transcription factor FOSL1 in activating sRCC-associated gene regulatory programs, and FOSL1 expression was associated with the response to ICIs in RCC in two randomized clinical trials. Finally, we established a blood-based diagnostic approach using detectable sRCC epigenomic signatures in patient plasma, providing a framework for discovering epigenomic correlates of tumor histology via liquid biopsy.

Original languageEnglish (US)
Article number114350
JournalCell reports
Volume43
Issue number6
DOIs
StatePublished - Jun 25 2024

Bibliographical note

Publisher Copyright:
© 2024 The Author(s)

Keywords

  • CP: Cancer
  • CP: Genomics
  • FOSL1
  • epigenomics
  • histone modifications
  • immune checkpoint inhibitors
  • immunotherapy
  • kidney cancer
  • liquid biopsy
  • renal cell carcinoma
  • sarcomatoid
  • transcription factors

PubMed: MeSH publication types

  • Journal Article

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